(Python) Release sites that are automatically logged out over time

Hello, everyone I'm Parin, who started Python with self-study and search.

I made a program that automatically logs in to the Internet banking site and Hometax using Selenium.

After auto-login, if you log in in the morning and you can't log out automatically, you don't need an auto-login program in the first place.

So I want to add a code that can't be automatically logged out to the automatic login code.

Even after a few days of searching, I understand how to use sessions and cookies, but I couldn't code just by self-study and searching.

The way I thought about it is

I tried to write the code, but I failed

Help me.